Definición de tuberculation en inglés:

sustantivo

The South American A. patriciae has spines more similarly placed to those of A. beetsi than to the new species, and its dorsal internal tuberculation forms a more distinctive bilobed pattern; it closely resembles A. aff. patriciae.

Margin of carapace demarcated with a broad shelf; edges characterized with rather coarse tuberculation that fades toward anterolateral and orbital margin field.

Coarse bifurcating ribs and tuberculation have been interpreted as a defensive measure; either by strengthening the shell or by providing visual camouflage.